If you have been dealing with persistent lower back pain, chances are someone—a trainer, a doctor, or a late-night internet search—told you to "strengthen your core." So, you started doing planks, crunches, or bird-dogs. But weeks later, your back still aches, or worse, feels stiffer than before. It is one of the most common frustrations we see in our physical therapy clinic: patients diligently working on core strength without seeing any meaningful pain relief. Why isn’t it working? The issue usually isn't that core strength doesn't matter—it’s that common core training misses how the back actually functions.
1. You’re Training "Brute Strength" Instead of Motor Control
When most people hear "core," they think of visible 6-pack abs (the rectus abdominis) or holding a plank until their whole-body shakes. However, spinal stability doesn't come from sheer muscle force; it relies on motor control and timing. Your core functions like an orchestra: deep muscles like the transversus abdominis, multifidus, and pelvic floor need to activate automatically, with just enough tension to support your movement. If you grip your abdominal muscles as hard as possible during everyday activities, you actually increase compressive forces on your lumbar spine, often worsening back stiffness and pain.
2. You’re Bracing, But Your Hips and Upper Back Are Locked Up
Your lower back (lumbar spine) sits right between your hips and your upper back (thoracic spine). If your hips or mid-back lack adequate range of motion, your lower back is forced to compensate by twisting or bending excessively during daily movements like reaching, lifting, or walking. You can build the strongest core in the world, but if your hips don't move, your lower back will continue to compensate for that.
3. High Muscle Tension vs. True Stability
A major misconception is that a "tight" core is a safe core. Constant muscle guard or over-gripping the abs restricts normal breathing mechanics.
The diaphragm is the top lid of your core container. When you brace so tightly that you can only take shallow chest breaths, you disrupt intra-abdominal pressure mechanics and create unnecessary muscle tension in the low back. Effective stability requires a core that can contract, relax, and adapt dynamically to movement—not an iron wall.
4. Back Pain is multi-factorial
Core weakness is rarely the sole cause of back pain. Chronic or recurrent low back pain is influenced by multiple factors, including:
Movement habits & posture variability: Staying in any static position too long.
Tissue sensitivity: Irritated nerves, facet joints, or intervertebral discs.
Lifestyle factors: Sleep quality, stress levels, and systemic inflammation.
Focusing exclusively on core exercises ignores the bigger picture of how your body moves and adapts.
What Actually Helps?
Instead of hammering away at generic ab exercises, try shifting your focus to these evidence-based strategies:
1. Re-Establish Hip and Upper Back Mobility
Before forcing your core to hold everything stiff, give your body room to move. Simple dynamic movements like hip flexor stretches, foam rolling, and gentle thoracic rotations help take excess load off your lower back.
2. Learn Dynamic Core Activation (Not Just Hard Bracing)
Focus on low-load motor control exercises like the Deadbug. The goal is to move your arms and legs while maintaining a stable trunk—breathing naturally throughout the motion without over-clenching your stomach.
3. Load Progressively
Once basic motor control is restored, your back needs strength in real-world movement patterns—hinging, squatting, carrying, and reaching. Progressive loading helps build real capacity in muscles, tendons, and joints.
How Physiotherapy Can Help
Ready to take the next step toward feeling better? Book a physiotherapy assessment with Integrative Physiotherapy & Wellness to identify what may be contributing to your pain, understand your movement needs, and develop a personalized treatment plan to help you move with greater comfort and confidence.
Call us today or book your assessment online.
References
Ledger, S. J., & Galvin, R. (2022). A systematic review of the effectiveness of core stability exercises in patients with non-specific low back pain. Journal of Functional Morphology and Kinesiology, 7(3), 62. https://doi.org/10.3390/jfmk7030062
McGill, S. M. (2016). Low back disorders: Evidence-based prevention and rehabilitation (3rd ed.). Human Kinetics.
Faries, M. D., & Greenwood, M. (2007). Core training: Stabilizing the confusion. Strength and Conditioning Journal, 29(2), 10–25.
Vanti, C., Andreatta, S., Borghi, S., Guccione, A. A., & Pillastrini, P. (2021). Efficacy of core stability in non-specific chronic low back pain: A systematic review. Endocrines, 2(2), 112–126. https://doi.org/10.3390/endocrines2020011
Hodges, P. W., & Richardson, C. A. (1996). Inefficient muscular stabilization of the lumbar spine associated with low back pain: A motor control evaluation of transversus abdominis. Spine, 21(22), 2640–2650. https://doi.org/10.1097/00007632-199611150-00014
